DBN V.2.5-77-2014 Boiler houses (new version) in Zmina No. 1 Standards DBN V.2.5-77-2014 Boiler houses are installed in the event of new construction, reconstruction, major repairs and technical re-equipment of existing boiler houses (boiler installations), regardless of their productivity. steam, water-heating and steam-water-heating boilers, heat generators with excessive steam pressure ...